Life on the frontier in Tynan Sylvester's RimWorld has just got harder, and a little bit easier. Alpha 11 has armed both the AI and player with new strategies to deal with pesky raiders and other unwelcome guests.

Sappers can now sabotage defences by digging tunnels and using explosives to blast holes. Crops are also vulnerable to being set on fire by raiders, but players can now use traps to even the odds.

Our fledgling colonies will also be subjected to "several long-term atmospheric conditions" like volcanic winters and fallouts of a toxic nature. A new trailer has been released highlighting the changes with Alpha 11 - Sappers and Traps. Old saved games won't work with the update.